201103513243 has 8 divisors (see below), whose sum is σ = 201834179888. Its totient is φ = 200372988384.

The previous prime is 201103513211. The next prime is 201103513307. The reversal of 201103513243 is 342315301102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201103513243 - 2⁵ = 201103513211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201103513343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3411205 + ... + 3469657.

It is an arithmetic number, because the mean of its divisors is an integer number (25229272486).

Almost surely, 2^201103513243 is an apocalyptic number.

201103513243 is a deficient number, since it is larger than the sum of its proper divisors (730666645).

201103513243 is a wasteful number, since it uses less digits than its factorization.

201103513243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70893.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 201103513243 its reverse (342315301102), we get a palindrome (543418814345).

It can be divided in two parts, 20110 and 3513243, that added together give a palindrome (3533353).

The spelling of 201103513243 in words is "two hundred one billion, one hundred three million, five hundred thirteen thousand, two hundred forty-three".